Hood system and method of controlling the same

Abstract

A hood system including a main body comprising an exhaust duct, a fan configured to generate airflow in the exhaust duct, an arm including an intake port and configured to allow air to be sucked into the intake port so as to pass through the arm and thereafter in the exhaust duct, a driving unit configured to be driven to move the arm, a sensor module configured to sense an environmental state of the hood system, and at least one processor configured to control driving of the driving unit based on the sensed environmental state to move the arm and thereby position the intake port based on the sensed environmental state.

What is claimed is: 
     
         1 . A hood system comprising:
 a main body comprising an exhaust duct;   a fan configured to generate airflow in the exhaust duct;   an arm comprising an intake port, the arm configured to allow air to be sucked into the intake port so as to pass through the arm and thereafter into the exhaust duct;   a driving unit configured to be driven to move the arm;   a sensor module configured to sense an environmental state of the hood system; and   a processor configured to control driving of the driving unit based on the sensed environmental state to move the arm and thereby position the intake port based on the sensed environmental state.   
     
     
         2 . The hood system of  claim 1 , wherein
 the main body comprises a fixed intake port on a surface of the main body, and   the exhaust duct comprises a first duct communicating with the intake port of the arm and a second duct communicating with the fixed intake port.   
     
     
         3 . The hood system of  claim 2 , wherein the main body comprises:
 an exhaust port to discharge the air passing into the exhaust duct to outside of the hood system,   a fan housing communicating with the exhaust port and housing the fan, and   a wall partitioning an interior of the exhaust duct into the first duct from the second duct.   
     
     
         4 . The hood system of  claim 2 , further comprising:
 a door configured to selectively open and close the intake port of the arm in a state in which the fixed intake port is open.   
     
     
         5 . The hood system of  claim 1 , wherein the arm comprises:
 a first arm comprising a first end portion connected to the main body and a second end portion opposite to the first end portion,   a second arm comprising a third end portion connected to the second end portion of the first arm and a fourth end portion opposite to the third end portion,   a first joint configured to connect the main body and the first end portion to allow the first arm to rotate within a predetermined angle range, and   a second joint configured to connect the second end portion and the third end portion to allow the second arm to rotate within a predetermined angle range.   
     
     
         6 . The hood system of  claim 5 , wherein the intake port comprises a first intake port on the first arm and a second intake port on the second arm. 
     
     
         7 . The hood system of  claim 5 , wherein the intake port is on a side surface of the arm extending from the third end portion to the fourth end portion and longitudinally extends in a direction from the third end portion to the fourth end portion. 
     
     
         8 . The hood system of  claim 5 , wherein the arm comprises:
 a third arm comprising a fifth end portion connected to the fourth end portion of the second arm and a sixth end portion opposite to the fifth end portion, and   a third joint configured to connect the fourth end portion and the fifth end portion to allow the third arm to rotate within a predetermined angle range.   
     
     
         9 . The hood system of  claim 1 , wherein the main body comprises a support groove configured to receive and support the arm in a state in which the arm is in close contact with the main body. 
     
     
         10 . The hood system of  claim 9 , wherein the at least one processor is configured to open the intake port so that air is sucked into the input port through a clearance space between the support groove and the arm, in a state in which the arm is in close contact with the main body and the intake port is positioned inside the support groove. 
     
     
         11 . The hood system of  claim 1 , wherein the hood system is for a cooking appliance, and the environmental state includes at least one of:
 a position of a user of the cooking appliance,   motion of the user,   an operation performed by the user,   an ambient temperature of the hood system,   a temperature of a heater of the cooking appliance,   a temperature of a cooking vessel on a cooktop of the cooking appliance,   a position of the cooking vessel,   air quality in a vicinity of the hood system, and   air volume in the vicinity of the hood system.   
     
     
         12 . A method of controlling a hood system including a main body comprising an exhaust duct, a movable arm including an intake port, and a sensor module configured to sense an environmental state of the hood system, the method comprising:
 recognizing a position of a cooking vessel by a sensor module;   moving the arm based on the sensed position of the cooking vessel, to thereby position the intake port based on the sensed position of the cooking vessel;   causing air to be sucked into the intake port, so that the air sucked into the intake port passes through the arm and into the exhaust duct;   sensing a change in an environmental state of the hood system by a sensor module; and   moving the arm based on the sensed change in the environmental state, to thereby position the intake port based on the sensed change in the environmental state.   
     
     
         13 . The method of  claim 12 , wherein the hood system is for a cooking appliance, and the environmental state sensed by the sensor module includes at least one of:
 a position of a user of the cooking appliance,   a motion of the user,   an operation performed by the user,   an ambient temperature of the hood system,   a temperature of a heater of the cooking appliance,   a temperature of the cooking vessel on a cooktop of the cooking appliance,   a position of the cooking vessel,   air quality in a vicinity of the hood system, and   air volume in the vicinity of the hood system.   
     
     
         14 . The method of  claim 12 , wherein
 the hood system is for a cooking appliance, and   the sensed change in the environmental state is a movement of a user of the cooking appliance away from the cooking appliance, and   the moving of the arm based on the sensed change in the environmental state is a moving of the arm toward a cooking vessel on a cooktop of the cooking appliance.   
     
     
         15 . The method of  claim 12 , wherein
 the hood system is for a cooking appliance,   the sensed change in the environmental state is a movement of a user of the cooking appliance toward the cooking appliance, and   the moving of the arm based on the sensed change in the environmental state is a moving of the arm away from a cooking vessel on a cooktop of the cooking appliance.   
     
     
         16 . The method of  claim 12 , wherein
 the hood system is for a cooking appliance,   the sensed change in the environmental state is a boiling of contents in a cooking vessel on a cooktop of the cooking appliance, and   the moving of the arm based on the sensed change in the environmental state is a moving of the arm toward the cooking vessel.   
     
     
         17 . The method of  claim 12 , wherein
 the hood system is for a cooking appliance,   the sensed change in the environmental state is a deterioration of air quality in the vicinity of the hood system, and   the moving of the arm based on the sensed change in the environmental state is a moving of the arm toward a cooking vessel on a cooktop of the cooking appliance.   
     
     
         18 . The method of  claim 12 , wherein
 the hood system is for a cooking appliance,   the hood system includes a fan configured to generate airflow in the exhaust duct,   the method further comprising:   controlling a driving force of the fan based on the sensed change in the environmental state.   
     
     
         19 . The method of  claim 12 , further comprising,
 acquiring additional data on the environment state of the hood system based on a sensing result;   comparing the additional data to pre-stored data and detecting a change;   updating the pre-stored data;   transmitting the change to a server; and   receiving new data from the server and updating the pre-stored data.   
     
     
         20 . The method of  claim 12 , further comprising:
 receiving information indicating a driving state of an Internet-of-things (IoT) device through a network, and   moving the arm based on the received information indicating the driving state of the IoT device.